/* 基本样式 */
body {
  margin: 0;
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  background-color: #f5f5f5;
}

/* 链接样式 */
a {
  text-decoration: none;
  color: #42b983;
}

a:hover {
  text-decoration: underline;
}

/* 按钮样式 */
button {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  background-color: #42b983;
  color: white;
  cursor: pointer;
}

button:hover {
  background-color: #38a169;
}

/* 表单样式 */
input, textarea {
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  width: 100%;
  box-sizing: border-box;
}

input:focus, textarea:focus {
  outline: none;
  border-color: #42b983;
}
